#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
/*
int main()
{
	int a, b, c;
	scanf("%d%d", &a, &b);
	c = a > b ? a : b;
	printf("%d", c);
	return 0;
}
*/

int main()
{
	int x = 021555;
	printf("%#x", x);
	return 0;
}
